Techniques for differentiation in harq process types

Abstract

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling indicating an uplink grant and a hybrid automatic repeat request (HARQ) process type for the uplink grant, where the HARQ process type is one of a set of HARQ process types usable for wireless communications between the UE and a network entity, and where the HARQ process type is usable for one or more logical channels from a set of logical channels. The UE may then generate and transmit an uplink message based on the uplink grant and the HARQ process type, where the uplink message includes uplink data associated with the one or more logical channels of the HARQ process type.

What is claimed is: 
     
         1 . A user equipment (UE), comprising:
 one or more memories storing processor-executable code; and   one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the UE to:
 receive, from a network entity, control signaling indicating an uplink grant and at least one of an uplink grant type or a hybrid automatic repeat request process type for the uplink grant, wherein the hybrid automatic repeat request process type is one of a plurality of hybrid automatic repeat request process types usable for wireless communications between the UE and the network entity and the uplink grant type is one of a plurality of uplink grant types usable for the wireless communications between the UE and the network entity, and wherein the hybrid automatic repeat request process type or the uplink grant type, or both, correspond to one or more logical channels from a plurality of logical channels; 
 generate an uplink message based at least in part on the uplink grant and at least one of the uplink grant type or the hybrid automatic repeat request process type, wherein the uplink message includes uplink data associated with the one or more logical channels corresponding to the uplink grant type or the hybrid automatic repeat request process type; and 
 transmit, to the network entity, the uplink message based at least in part on generating the uplink message. 
   
     
     
         2 . The UE of  claim 1 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:
 identify the one or more logical channels associated with the uplink grant type or the hybrid automatic repeat request process type based at least in part on one or more characteristics associated with the one or more logical channels, the uplink data of the one or more logical channels, or both, wherein generating the uplink message in accordance with at least one of the uplink grant type or the hybrid automatic repeat request process type is based at least in part on identifying the one or more logical channels corresponding to the uplink grant type or the hybrid automatic repeat request process type.   
     
     
         3 . The UE of  claim 2 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:
 receive, via the control signaling, an indication of the one or more characteristics, wherein identifying the one or more logical channels, generating the uplink message, or both, is based at least in part on receiving the indication of the one or more characteristics.   
     
     
         4 . The UE of  claim 2 , wherein the one or more characteristics associated with the one or more logical channels comprise a link quality metric associated with the one or more logical channels. 
     
     
         5 . The UE of  claim 2 , wherein the one or more characteristics associated with the uplink data of the one or more logical channels comprise a remaining time associated with the uplink data. 
     
     
         6 . The UE of  claim 1 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:
 receive a logical channel prioritization restriction policy associated with the UE, wherein the logical channel prioritization restriction policy indicates an association between the plurality of hybrid automatic repeat request process types and corresponding sets of logical channels, wherein the uplink message is generated in accordance with the logical channel prioritization restriction policy.   
     
     
         7 . The UE of  claim 1 , wherein each hybrid automatic repeat request process type from the plurality of hybrid automatic repeat request process types is associated with a respective set of hybrid automatic repeat request transmission parameters. 
     
     
         8 . The UE of  claim 7 , wherein each respective set of hybrid automatic repeat request transmission parameters comprises at least a quantity of hybrid automatic repeat request retransmissions or a block error rate metric. 
     
     
         9 . The UE of  claim 1 , wherein the control signaling comprises a downlink control information message, a radio resource control message, or both. 
     
     
         10 . The UE of  claim 1 , wherein, to receive the control signaling, the one or more processors are individually or collectively operable to execute the code to cause the UE to:
 receive a radio resource control message indicating associations between the plurality of hybrid automatic repeat request process types and corresponding sets of logical channels; and   receive a downlink control information message indicating the uplink grant and the hybrid automatic repeat request process type from the plurality of hybrid automatic repeat request process types that is to be used for the uplink grant, wherein generating the uplink message, transmitting the uplink message, or both, is based at least in part on receiving the radio resource control message and the downlink control information message.   
     
     
         11 . The UE of  claim 1 , wherein the uplink grant type is associated with a Packet Data Unit (PDU) session, wherein the one or more logical channels correspond to the PDU session. 
     
     
         12 . The UE of  claim 1 , wherein the uplink grant type is associated with a network slice, wherein the one or more logical channels correspond to the network slice. 
     
     
         13 . The UE of  claim 1 , wherein the uplink grant type is associated with a delay-sensitive quality of service (QoS) flow, wherein the one or more logical channels correspond to the delay-sensitive QoS flow. 
     
     
         14 . The UE of  claim 1 , further comprising:
 receive a radio resource control message indicating a correspondence between the plurality of uplink grant types usable for wireless communications between the UE and the network entity and a first plurality of indexes or between the plurality of hybrid automatic repeat request process types and a second plurality of indexes, or both, wherein the control signaling indicates the uplink grant type or the hybrid automatic repeat request process type based at least in part on the control signaling comprising one or more indexes that correspond to the uplink grant type or the hybrid automatic repeat request process type, or both.   
     
     
         15 . A network entity, comprising:
 one or more memories storing processor-executable code; and   one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the network entity to:
 transmit, to a user equipment (UE), control signaling indicating an uplink grant and at least one of an uplink grant type or a hybrid automatic repeat request process type for the uplink grant, wherein the hybrid automatic repeat request process type is one of a plurality of hybrid automatic repeat request process types usable for wireless communications between the UE and the network entity and the uplink grant type is one of a plurality of uplink grant types usable for the wireless communications between the UE and the network entity, and wherein the hybrid automatic repeat request process type or the uplink grant type, or both, corresponds to one or more logical channels from a plurality of logical channels; and 
 receive, from the UE, an uplink message based at least in part on the uplink grant and at least one of the uplink grant type or the hybrid automatic repeat request process type, wherein the uplink message includes uplink data associated with the one or more logical channels corresponding to the uplink grant type or the hybrid automatic repeat request process type. 
   
     
     
         16 . The network entity of  claim 15 , wherein the one or more logical channels associated with the uplink grant type or the hybrid automatic repeat request process type are based at least in part on one or more characteristics associated with the one or more logical channels, the uplink data of the one or more logical channels, or both. 
     
     
         17 . The network entity of  claim 16 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to:
 transmit, via the control signaling, an indication of the one or more characteristics, wherein receiving the uplink message is based at least in part on receiving the indication of the one or more characteristics.   
     
     
         18 . The network entity of  claim 15 , wherein the uplink grant type and the one or more logical channels are associated with a Packet Data Unit (PDU) session, a network slice, delay-sensitive Quality of Service (QoS) flow, or any combination thereof. 
     
     
         19 . The network entity of  claim 15 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to:
 transmit a logical channel prioritization restriction policy associated with the UE, wherein the logical channel prioritization restriction policy indicates an association between the plurality of hybrid automatic repeat request process types and corresponding sets of logical channels, wherein the uplink message is based at least in part on the logical channel prioritization restriction policy.   
     
     
         20 . A method for wireless communications at a user equipment (UE), comprising:
 receiving, from a network entity, control signaling indicating an uplink grant and at least one of an uplink grant type or a hybrid automatic repeat request process type for the uplink grant, wherein the hybrid automatic repeat request process type is one of a plurality of hybrid automatic repeat request process types usable for wireless communications between the UE and the network entity and the uplink grant type is one of a plurality of uplink grant types usable for the wireless communications between the UE and the network entity, and wherein the hybrid automatic repeat request process type is usable for one or more logical channels from a plurality of logical channels;   generating an uplink message based at least in part on the uplink grant and at least one of the uplink grant type or the hybrid automatic repeat request process type, wherein the uplink message includes uplink data associated with the one or more logical channels corresponding to the uplink grant type or the hybrid automatic repeat request process type; and   transmitting, to the network entity, the uplink message based at least in part on generating the uplink message.